Got this for my 9 and 12 year old, but they have not had much chance to play it as I am always hogging the game.
This is different than Tetris in that you stack the pieces all along the edges. The small rectangle is the "out of bounds" area where if the stack reaches, you lose. The really neat thing is that turning and tilting the toy causes the piece to fall in that direction instead of pressing keys. You use the sets of two buttons along the sides to do the rotating and "quick drop", you need 4 sets because you may have the toy turned in any direction to get the pieces to fall down where you want them.
The screen is 2 by 2.5 inches and I can clearly see it without my bifocals. The graphics are black and white.